<!DOCTYPE html>
<html>

<head>
<script>

function K(v) { return function() { return v; } }

var errorProxy = new Proxy({}, {get: function() { throw new Error(); }});

function boom()
{
  var focused = document.createElementNS("http://www.w3.org/1999/xhtml", "input");
  document.body.appendChild(focused);
  var otherWin = window.open("data:text/html,1", "_blank", "width=200,height=200");
  try { otherWin.history.replaceState(errorProxy, "title", "replaceState.html"); } catch(e) {}
  focused.focus();
  focused.addEventListener("foo", K(otherWin.applicationCache), false);
  otherWin.close();
}

</script>
</head>

<body onload="boom();">
<button onclick="boom();">If you have popups blocked, click here to start the leak test</button>
</body>

</html>
